Alert archive / Texas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 61, NWS Austin/San Antonio, TX

May 12, 2011Fayette County, Lee County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 12, 2011, 9:48 AM CDT for Fayette County, Lee County, Texas. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 12, 2011, 9:48 AM CDT (14:48 UTC)
Expired: May 12, 2011, 10:17 AM CDT
In force: 29 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon

Counties Fayette County, TX, Lee County, TX

The radar

The Ft Hood radar (KGRK), 75 km from the middle of the area, began a volume at 14:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 12, 9:02 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 2.8 hours before the alert went out and 287 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1960 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 567 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 259 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

750 
WUUS54 KEWX 121448
SVREWX
TXC149-287-121530-
/O.NEW.KEWX.SV.W.0061.110512T1448Z-110512T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
948 AM CDT THU MAY 12 2011

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN FAYETTE COUNTY...
  LEE COUNTY...

* UNTIL 1030 AM CDT.

* AT 945 AM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES EAST OF
  GIDDINGS...AND MOVING NORTHEAST AT 15 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE LEXINGTON...DIME BOX AND
  TANGLEWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3009 9664 3008 9705 3054 9705 3055 9700
      3050 9688 3047 9690 3038 9676 3033 9674
      3031 9665 3027 9666 3023 9674 3017 9678
      3017 9669 3014 9664
TIME...MOT...LOC 1448Z 204DEG 14KT 3020 9682

$$

1 follow-up statement

292 
WWUS54 KEWX 121517
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1017 AM CDT THU MAY 12 2011

TXC149-287-121527-
/O.CAN.KEWX.SV.W.0061.000000T0000Z-110512T1530Z/
LEE TX-FAYETTE TX-
1017 AM CDT THU MAY 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FAYETTE AND LEE
COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 PM CDT
THURSDAY AFTERNOON FOR SOUTH CENTRAL TEXAS.

LAT...LON 3009 9664 3008 9705 3054 9705 3055 9700
      3050 9688 3047 9690 3038 9676 3033 9674
      3031 9665 3027 9666 3023 9674 3017 9678
      3017 9669 3014 9664
TIME...MOT...LOC 1517Z 204DEG 14KT 3030 9677

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 7:09 PM CDT	Severe Thunderstorm Warning	EWX	Burnet, Llano	51 min
May 11, 7:12 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Llano	63 min
May 11, 7:15 PM CDT	Areal Flood Advisory	EWX	Llano	105 min
May 11, 7:59 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Llano	46 min
May 11, 8:37 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Llano	23 min
May 11, 8:42 PM CDT	Areal Flood Advisory	EWX	Burnet	108 min
May 11, 8:56 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Llano, Travis, Williamson	49 min
May 11, 9:33 PM CDT	Severe Thunderstorm Warning	EWX	Burnet, Williamson	27 min
May 11, 9:53 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	37 min
May 11, 10:19 PM CDT	Severe Thunderstorm Warning	EWX	Hays, Travis	41 min
May 11, 10:49 PM CDT	Severe Thunderstorm Warning	EWX	Hays, Travis	41 min
May 12, 3:28 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	47 min
May 12, 4:20 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	40 min
May 12, 5:00 AM CDT	Areal Flood Advisory	EWX	Val Verde	2 hr
May 12, 5:05 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	40 min
May 12, 5:24 AM CDT	Flash Flood Warning	EWX	Val Verde	3 hr
May 12, 5:46 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	44 min
May 12, 6:30 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Uvalde	60 min
May 12, 6:40 AM CDT	Tornado Warning	EWX	Kinney	35 min
May 12, 6:59 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Edwards, Kerr, Kinney, Maverick, Medina and 4 more	61 min
May 12, 7:06 AM CDT	Tornado Warning	EWX	Uvalde	39 min
May 12, 7:45 AM CDT	Tornado Warning	EWX	Uvalde	45 min
May 12, 8:05 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Kinney, Maverick, Medina, Uvalde, Zavala	40 min
May 12, 8:26 AM CDT	Tornado Warning	EWX	Dimmit, Maverick, Zavala	49 min
May 12, 8:41 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Comal, Dimmit, Frio, Kendall and 5 more	64 min
May 12, 8:49 AM CDT	River Flood Warning	EWX	Val Verde	11 hr
May 12, 8:53 AM CDT	Severe Thunderstorm Warning	EWX	Travis	37 min
May 12, 9:03 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	42 min
May 12, 9:07 AM CDT	Tornado Warning	EWX	Medina	23 min
May 12, 9:11 AM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Comal, Gillespie, Hays, Kendall and 3 more	64 min
May 12, 9:20 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	40 min
May 12, 9:26 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Lee, Travis, Williamson	49 min
May 12, 9:36 AM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe, Medina	54 min
May 12, 9:46 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Blanco, Caldwell, Comal, Frio and 5 more	59 min
May 12, 9:50 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Dimmit, Frio, Zavala	55 min
May 12, 10:02 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar, Caldwell, Comal, Guadalupe, Hays and 4 more	118 min
May 12, 10:07 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	38 min
May 12, 10:15 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Hays, Lee, Travis, Williamson	45 min
May 12, 10:16 AM CDT	Flash Flood Warning	EWX	Bexar	104 min
May 12, 10:24 AM CDT	Flash Flood Warning	EWX	Caldwell, Hays, Travis, Williamson	3 hr
May 12, 10:37 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bastrop, Caldwell, DeWitt, Fayette, Gonzales and 4 more	53 min
May 12, 10:58 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Lavaca, Lee and 1 more	47 min
May 12, 11:28 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bastrop, Caldwell, DeWitt, Fayette, Gonzales and 3 more	47 min
May 12, 11:32 AM CDT	Tornado Warning	EWX	Fayette, Gonzales, Lavaca	28 min

Nearby

Severe Thunderstorm Warnings in Texas, 2011 Every severe thunderstorm warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.